diff --git a/ID_converter_ILGRMHD/schedule.ccl b/ID_converter_ILGRMHD/schedule.ccl
index 626c9a6..01d31b0 100644
--- a/ID_converter_ILGRMHD/schedule.ccl
+++ b/ID_converter_ILGRMHD/schedule.ccl
@@ -1,5 +1,7 @@
 # Schedule definitions for thorn ID_converter_ILGRMHD

+STORAGE: HydroBase::Avec[1]
+
 schedule group IllinoisGRMHD_ID_Converter at CCTK_INITIAL after HydroBase_Initial before Convert_to_HydroBase
 {
 } "Translate ET-generated, HydroBase-compatible initial data and convert into variables used by IllinoisGRMHD"